One of the things out of many that I like and enjoy is when on face book my friends and family include their choices of videos and music to share that they have enjoyed on You Tube. Helps to know what they like and what they are interested in.
It can be very entertaining, although very time consuming. Youtube does a decent job of blocking out adult content, but there is still some suggestive content on here.
YouTube is a wonderful site when you are bored and want some humor, or to watch a tutorial about something.